Tabletop clamp



FIG. 1 is a front perspective view of a tabletop clamp, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view thereof, also showing the tabletop clamp in use over a tabletop, which is shown in phantom lines.

The tabletop and slots in the handle shown in phantom lines depict use and environment, and form no part of the claimed design. 

The ornamental design for a tabletop clamp, as shown and described. 